Prefer column staggered, but yes they really make you wonder how we got stuck with the dominant keyboard configurations. Typing with linear columns feels way more natural.
I just received my 4x12 keyboard 4 days ago! While there has been a steep learning curve and I took a huge hit on my typing speed, I really enjoy using it. I was a bit hesitant to spend much $$$ on something I wasn't sure about, so I decided that if I didn't like it that I could just use it as a macropad or use it in place of my dying Logitech G13 gaming pad. So far, I've been carrying it between work and home and using it for everything. If all goes well, this will be my main and only keyboard.
It's a CSTC40 that I bought from aliexpress. Unfortunately, it looks like they stopped selling it after I received mine (lucky me!). This unit seems to get shit on by mechanical keyboard enthusiasts, but I love it because it was cheap ($70CDN shipped) and didn't require soldering. I happened to have a set of keycaps that I've made work for this keyboard. I don't really look down when I'm typing, so I don't really care that some of the legends don't make sense.
Ergodox EZ has my whole hearted recommendation. Their keyboards are amazing and the only thing better for ergonomics would be a more custom curved piece.
They're a good company, I would recommend anyone checking them out.
I have a planck at work and a preonic at home. It takes some time to get used to but now that I have switched I will never go back. I might try something split like a corne next but I'm kind of waiting for something that matches my olkb boards a bit better.
Ortholinear would be the new standard if I had my way. I'm also eyeing that MNT Reform pocket pretty hard for that awesome keyboard but I really want them to release a tactile switch option for it.
Tried a Typematrix. At the time, I was a roving freelancer who frequently worked with other people at their machines, so I decided that it was safer to stick with a conventional layout.
Having Enter on the thumb was interesting, but I never got used to it.
I have an ortho I made, and I just couldn't get used to it. I've never had any keyboard-related RSI, and my "spider dance" typing is very much a hand-eye coordination task, so... ehhh. No neuroplasticity for it.
Ortholinear is a great gateway into better keyboards and a better layout. I started with a planck and used it to learn colemak-dh. I have since moved to a more DIY split keyboard with a columnar layout which is ortholinear except the volume are staggered to fit the length of fingers better.
This journey has been a godsend in helping my RSI issues from my Dev job.